Improvement in sash-bolt



`JAMES'C. COOKE, OF

` anatema 'mi @titre BRIDCEPORT, SSIGNOR TO DE WITT C. SAGEQOF MIDDLETOWN,

CONNECTICUT.

' Letters Patent No. 100,505, dated Ma/rch 8, 1870.

IMPROVEMENT I N SASH-BOLT.

The'schedule referred to in these Letters Patent and making part of the same.

To all-whom it may concern: i

Beit known that I,`J.AMEs G.Coo1 n,of Bridgeport, in the county of Fairfield, and State of Connecticut, have invented a new and improved Sash- Fastening; and l do hereby declare that the following isfa full, clear, and exact description thereof, reference vbeing had to the accompanying drawings making part .y Figure 6 is an end viewof the screw-threaded tube and its spring stem.A

Similarletters of reference indicate corresponding parts in the several figures.

The object of this-is to improve sash-fasteniugs,

vwhich are applicable to the meeting rails of windowsashes, by the application of a spuug bolt, having a cross-pin applied to one end, wit-hin ascrew-threaded tubular and slotted guide, and by the employment in combination therewith of a perforated plate having stops applied on its back side, said parts being so constlilct'ed as to afford a substantial and safe fastening,

and one which cannot, `under any circumstances, in-

ijure .the sashes, as will be hereinafter explained.

To enable others skilledlin the art to understand my invention, I. Awill describe its constructionv and op eration. y

In the accompanying-.drawings I have represented the improved device enlarged; f y

It should be understood that the stem A is to be screwed transversely through the meeting rail ofthe lower sash' of a window at vthe middle of the length of the said rail, and that the guard-plate C is to be applied'to the inner side ofthe meeting rail of the up` per sash, so that the center of this plate C will, when the windows are both closed, coincide with -the longitudinal axis of the bolt B', as indicated in n'gs. 1, 3, and 5. A ,3 t

'lhe stern A basan opening centrally through it, and athread formed helically around its circumference, thus forming a `screw-threaded tube, whiLh can be `screwed int-o ahole bored through the sash-rail, and

thus firmly held in place.

On one end of the stem A a head, A, is formed, which may be ornamented in any suitable manner, andwhich is preferably inadefprislnatc, in order that it may be 'conveniently griped and lirxnly held, by meansof a wrench, after the manner ot' a nut.

outwardly.

' The bore through the opposite end of the stem A is of less diameter than the bore of greatest length, by which means a shoulder, b, is formed, between which shoulder and a shoulder, b', on a bolt, B B', a helical spring, s, is applied, which' coils around the reduced portion of vsaid bolt and operates to force this bolt Through the reduced portion B of the bolt a pin, c, is passed transversely, and securely fastened sothat its extremities extend au equal distance from and on opposite sides of the periphery of the -said reduced portion.

Thispin c prevents the bolt from being forced out 4of vits stem by abutting against the ends of slotsa a,

made through the stem, as shown in iig. 3. Pin c also serves other purposes, hereinafter explained. f

The enlarged portion B of the bolt is formed into a knob or handle, ornamented iu any suitable manner. K

In fcombination with the tubular screw-stem and spring bolt,- I employ a guard-plate, C, which is ,pre-4 ferably made circular and with one fiat face. This guard-plate is inserted into the meeting rail of the -upper sash, so that its flat surface isfiush with the inner surface of such rail.

A hole, d', is made centrally through the plate C, of such diameter as will allow the smallest end of holt B B to pass freely through it, and from .this hole d',

'diametrically opposite each other, notches d d are formed of such length and width as will allow the ends of pin c to 'pass freely through the plate C.

On the back of this plate stops e'e g g are formed; the two longest stops, e e, prevent theholt B B from being turned entirely around, while the stops g g, which are rounded or beveled, serve to keep the bolt y in place when adjusted so as-to fasten the sashes, as shown in iig. 2. y l

rlhe fastening of the sash is'eiected by means of the piuc, acting against the back side of plate C, when adjusted between'lugs g e. To thus adjust said pin the bolt B B must he pressed forward until pin c passes through guard-plate C when this bolt should be turned one-fourth around, and the pin c brought at right angles to the notches d d. l

y The `spring s will now, by its retraction, draw the .meeting rails of the sashes together, and the end of the bolt being through plate C will prevent the sashes from being moved vertically. v 4 When the pin c is adjusted iu line with the notches d d, the spring s will drawt-his pin into the slots ac, as shown in figs, 3 and 5.

1t will be seen that, when the fastening is applied to a sash, the holt' B can only be in one of two positions, to wit: the position shown in iig. 1, when it' 2. The guard-plate C, perforated atddd, and having lugs g g and stops e e formed on it, adapted for use in combination with a. spring boli; and a pin c, substantiully as described.

Witnesses WILL. PORTER, H. BISHOP.

JAMES C. COOKE. 

